Home / 648,004.20-972,006.30-559,357.80

Finding the Fourth Proportional to 648,004.20, 972,006.30 and 559,357.80

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Solution

The fourth proportional to 648,004.20, 972,006.30 and 559,357.80 is: 839,036.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,004.20 : 972,006.30 = 559,357.80 : x
  2. Step 2: Convert to fraction form
    648,004.20/972,006.30 = 559,357.80/x
  3. Step 3: Cross multiply
    648,004.20x = 972,006.30 × 559,357.80
  4. Step 4: Simplify right side
    648,004.20x = 543,699,305,554.14
  5. Step 5: Solve for x
    x = 543,699,305,554.14/648,004.20
  6. Step 6: Final answer
    x = 839,036.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.